Improved apparatus for carbureting air



1. H. IRWIN.

` Carburetor. l

No. 49,526. Patented .1865.

UNITED STATES PATENT OFFICE. Q

JOHN H. IRWIN, OF CHICAGO, ILLINOIS. y

IMPROVED APPARATUS FOR CARBURETING AIR` To all whom 'it may concern.-

Be it known that I, J oBN H. IRWIN, of Chi-A cago, in the county of Cook and State of Illinois, have invented a new and useful Improvement iu Apparatus for Oarbureting Air;A and I do hereby declare that the following is afull, clear, and exact description ot' the same, reference being had to the accompanying drawings and the letters and gures marked thereon, which form part of this specification.

The nature of my invention consists in the application of heated air as a motor for propelling a fan or other suitable device to produce a current of air through the carburetor and a pressure at the burners. As the specilic gravity of the carbureted air or gas is greater than that of the common air, when the burners are all arranged below the apparatus containing the hydrocarbon duid the requisite current through the apparatus and the proper pressure at the burners are produced automatically, al-

though the same may be increased by the application of an artificial force, it' desired; but when all or even part ot' the burners are arranged above the carburetor, then the employ ment of artificial force becomes absolutely essential to the operation of the apparatus.

To enable those skilled in the art to understand how to practice and use myiuventiou, I will proceed to describethe same with particularity, reference being madein so doing to the aforesaid drawingsin which- Figure l represents a side elevation of my invention; Fig. 2, a horizontal section ot' the same at Vthe line win Fig. l; and Fig. 3, aside view, showing the application of a caloric engine as the propelling agent in producing the desired current ot' air. f

Similar letters of reference in the different figures denote corresponding parts-of my invention.

A represents the carburetin g apparatus, containing naphtha or its equivalent; B, the inletpipe, through which the current of air enters the` same, and G D E are the pipes through which the carbureted air or gas passes from tlfe. apparatus to the burners.

G represents a vertical cylindrical chamber, beneath which the gas-pipe E enters, terminating in the burner F.

H represents a small door in G, which may be opened to light the burner F.

J represents a horizontal fan-wheel xed upon the vertical shaft K, whose lower end rests upon the cross-bar N and whose upper end is provided with suitable bearings in the ends of the cylindrical casing L, which is supported upon the standards o o above thetop of the cylinder. The said fan-wheel J is so constructed and arranged that the heated air rising in the cylinder Gr will revolve the same, and thereby the shaft K. Upon the said shaft K, within the. chamber L, is arranged a fan wheel with vertical wings, (marked M,) whose revolution blows a current of air through the pipe B into the carburetor A and forces the carbureted air therein produced through the pipes O D E to the burners, where it may be ignited.

The airin the chamber Gr may be heated by other fuel than gas when desired. however, any fuel is used which producessmoke, the funnel and pipe marked I should be` arranged, as shown, over the burning fuel to carry oft' the smoke.

In Fig. 3 is shown the application of a caloric engine, in which the hot air may be generated by the combustion of gas from the carburetor, and which, by means of the drive-wheel Q and the beveled gearing upon the lower end otI the shaft K, operates the fan-wheel M and produces the current and pressure through the carburetor and at the burners, as before. Iiistead of gas, coal may be usedtor fuel in said caloric engine.

Having described my invention, I will now proceed to specify what I claim and desire 'lo secure by Letters Patent.

I claimp 1. The arrangement of an engine or machine operated by heated air with an air-pump or other device for producing a current of air, and a carburetin g apparatus, arranged and operating substantially as and for the purposes specified and shown.

2. lu combination with a carburetor, the employment of an engine or machine operated by heated air produced by the combustionof car-,

bureted air, and a suitable device for producing a current ot' air through the carburetor, arranged and operating substantially as shown and described.

JOHNH. IRWIN. Witnesses: i i

W. E. MARES, GEo. B. NICHOLS.

When, t 

